PluginsManager.java 文件源码

public PluginsManager() {
    plugins = new HashMap<String, Plugins>();
    actions = new HashMap<String, ISumoAction>();

       emf = Persistence.createEntityManagerFactory("GeoImageViewerPU");

       EntityManager em = emf.createEntityManager();
       em.getTransaction().begin();
       Query q = em.createQuery("select p.className from Plugins p");
       List<String> dbPuginNames = q.getResultList();
       em.getTransaction().commit();
       populateDatabase(dbPuginNames);

       em.getTransaction().begin();

       Query q2 = em.createQuery("select p from Plugins p");
       List<Plugins> dbPlugins = q2.getResultList();
       dbPlugins = q2.getResultList();
       em.getTransaction().commit();

       em.close();
       List<ISumoAction> landActions=getDynamicActionForLandmask();
       parseActions(dbPlugins);

       parseActionsLandMask(landActions);
}